Gearing for grain-drills



w. R. HARTUNG.

GEARING FOR GRAIN DRILLS.

APPLICATION FILED JAN-15.1919.

` Patented Feb. 3, 1920.

Gtto'on Ms,

I UNITED STA-'1111s for A Grain-Drills,

WILLIAM aIIAR'rUNG, ory coNNELL, WASHINGTON, AssIGNoa rro THE v'IIaoiiIAsv MANUFACTURING COMPANY, oF

oIIIo.

To all whom it may concern: Y

Be it known that I, WILLIAM R. HARTUNG, a citizen ofthe United` States, VresidingY at Connell, inv the county of Franklin kand State of Washington, have invented certain new and useful Improvements in Gearing ofwhioh the following is a specification, .reference'being had therein to theaccom-panying drawing.r `r

This inventionr rel tes to gearing for grain drills and aims to improve the conjy by .applistruction of'prior patents owned Ne, r100,231,1Mey

ther improvement of the construction shownin the pending application for patent cf QH. Peltomfiled Nov;v 10, 1917, Ser. No;

posite ends rigidly secured. inV thev t supporting respectively. the distributer shaftv In these prior ypatents there is shown a change gearing -for grain drills in which a distributer shaft 1sA connected toa driving axle through al connecting shaft having pinions mounted thereon,=` these pinions meshing respectively with the gears on the driving axle.andthedistributer shaft. The has been gen1 erally vsatisfactory in.l commercial -use butV it the eXj Ytent of bearing or journal surface was-not.

sufficient and air occasional breakage 1of construction of l the patents has been found that in somecases parts -resulted. v 1

Therefore, it isan obj ect of the resent invention to provide a simple Van effective construction of theconnections referred to not liable to wear'or breakage and easily oiled and kept in good condition.

VIn the improved form of construction a supporting shaft is provided havin 4its opand the driving axle. Telescoped upon the shaft is a sleeve having u one end thereof arpinion meshing with' a gear on the distributer shaft, and a pinion slidably secured to the .other end thereof and Y meshing with a change gearcarried by the ,y driving axle. Thus the `driving connection'.v

between the axle and the. distributer'axle is strengthened and? supported byl the rigidV shaft extending between the bearings and wear and possible breakage'V are thereby minimized.

Referring I y Specification of Letters Patent.

arings f rigidly secured to n to the drawings, Figurel shows aside elevation of a grain drill hopper and SPRINGFIELD; oHIo, -A conronATIoN or j GnAnINGIon GRAIN-nains.

- Patented Feb. 3, 1920.

i App1icat1onnied-January 15,1919. 'sentirne 271,195.

` thel mechanism of Vthe invention applied thereto ;1.and v y Fig. is Van enlarged detail viewl of the supporting shaft and associated parts, the view being in vertical section.

Referring to the drawmgsthe parts of the .invention generally are .shown as nearly similar .to .the corresponding parts of the patents referred to. The grain hopper 1 carries the distributer shaftl 2 by means of abearingblock 91, which block-maybe fas- ,tened tothe bottom of the hopper in any de-` V-sired way. As a preferredl form the construction shownin the earlier of the. two patents referred to may bev employed. yThe *distributer shaft 2 is shown as. squarein OFFICE, 1

" cross section andv has splinedthereon a bevel. Y

gear B'which` drives it. Thedriving axle7` is supported in a journal or housing 30 `and` fastened to this axle is achange gear/41,y as l" n show-n inthe prior patents. Aconnecting sleeve' 4 carries abevel gear 5 near its lower end and-a bevel gear 7'1near its upper end,

the gear lbeing adapted tobe driven bythe change `gear. k41and theigear 71 meshing with and'driving the gear on thedistributer shaft. kThus,..the movement of thevehicleV rotates` the drivingk axlefly and-the change gear 41 and thus voperates'the dis` tributer shaft 2 inthe desiredmanner. f

. To 'causediiferentspee'ds of rotation of the distributer shaft the bevel gear 5 is splinedto moved'along this shaftlV by a yoke 9,'the yoke being slidable along a rod 12 supported -by an extension 21 of the journal 30 at its lower end' and fastenedtothe grain hopper 1` atits upper vend-through an kintervening inl` dicator section '20.. As the yoke 9 is moved up yand down along the rod 12 .the'bevel pinion orgrear is correspondingly elevated and` thus the ratio of speed of shaft 2 to' axle 7 isz changed. In 'order to maintain the bevel gear 1n 'the desired position" a spring f latchfl is employed. The arts thus far described are substantial y those found inthe priorfpatents tion will be next described.

It. has been found by long usage that Vwhen the bearing plate 91 and the axle journal 30 were bored to providejournals for the connecting shaft 4, in some cases an insuiicient amount of-bearmg surface was pro-l and `the invention vof the 'present'applica-V i Y vided because lof the'erough and hard usage which such devices as rain drills received, In order to improve t is part of the constructionv the present invention provides "shaft Blext'ending between the bearings 91 and 30,]as clearly shown in Fig. 2. Itgwill be seen that the bearing plate 91 provides an elongated housing in which theupper end closely snrronndi-ngthe 4upper end :of the sleeved:V and 4this upper .end ofthe sleeve 4 abuts against Ya portionY'Z ofthe gear 71.' Similarly-'fthe journal or housing `30 sur-L i rounding the'fdriving' axle '7 Vsupports the i' 4,-, 'as beforestated, and when the shaft fv is polygonal in 'eross section this may 1 be, done :by providing'the bevel pinion p-with Y oppositek end of shaft 3l,- the'shaft extending a considerable ydistance into the housing; The bevel pinion .5 is splined-towthe sleeve a'rfsirnilarly Vshaped central aperture.

.'Thus it will'befseenthat'uthe shaft 3lv acts to'holdthe, distributershaft in iixedrelation l Y to .the drivingaxle' and toi-strengthen and "supportjthe' connecting driving mechanism throughout its'entirelength.. The `endsr of theesha'ft being rigidly secured in the bearf ing Ahousings. thereis no tendency of-jthe'.`

parts to move `out of -adjustxnenmand wear andbreakage of the .parts isrenderednegli# gible. vTo minimize friction'bet'ween the slnrft and .sleeve l the shaft isprovided with f i1. groove 32y by means. ofrwhicli oil-may be' suplieditolthe working surfaces.-v l

ne Irhave vSmmmi,drecrjibedcertain A features as constituting my invention, it will be understood thetfpertshave been lshown orpurposes `of.. illustration only, and v'that do" not desire vto be Yliinitedito snc-'h 'Vdetails,

as obviousfmodincations will occur to a` person skilled Vin the art. A y ,l I e. Havin thus fullyjdescribed iny invention, what I c aim asnewand'desirefto 'secure by Letters Patent, is

. 1. The 'combination with the axle Y feed shaft of a` grain drill havinggearsgsecuredv4 thereto, respectively, bearings; ssupirspending projectonof the opposite fbeare 'ingyagshaft vsecured insaid bearing projections and' extending therebetween, a ,sleeve rotatableron said shaft and having gpinirons tively with. said, gears.'

atthe-opposite endsthereof meshing respecpg i The' coinbinationfwith yageaQred driving ported ,relativeto said shafts, each havingv a bearing proJe'ction alined with a corr`e drill, ofbea`r1ngs-gfor said shatsf having geared sleeve 'rotatable rtonite-he fixed Vshaft and cooperating with said geared .sliaftsg;iv whereby .movement maybe transmitted `from" f thevdriving shaft to the feed shaft.

of ,al grain drill having `a changegear,A of

3,; The combination with Ythe-driving axle .e

alined projections extending'- .between said shafts, a sliaftdixed inwsaid prolyections, a

a feedV shaftr hav-ing ajgear, bearings forVV saidzshafts'havng alined angularly inclined projections extending therebetfvveem-aixed lj;

shaft extending substantially between jthe .axle andthe feed shaftv andhaving its endsl secured in-saidprojections, aisleeve rotatable `on the fixed shaftvand having-a gear'ixed thereto meshing. ywith the@gear kon the feed Y shaft and*y afgear:adjnstably.,securedV thereto Y meshing ,with saidv .change .gear, fvhereby feedlshatt. f .i e .In testimony'fwhereofl aiX my Signet-wf variable movement may be irnparted Y to fthe 

